Menu
Lithium-metal battery could boost gadget power

Lithium-metal battery could boost gadget power

A lithium anode battery could mean less frequent recharging for electronics

Researchers at Stanford University have made progress toward designing a battery with a lithium anode, a development that could increase battery power in electronics.

Reporting in the journal Nature Nanotechnology, the researchers described how they designed a lithium-metal anode in order to boost the energy storage density.

The anode of a battery discharges electrons into the current cycle. In a regular lithium-ion battery, it is usually made of graphite or silicon.

Lithium is known for its high energy density and lightweight properties, but it has proven problematic in battery research.

Using it as an anode results in metal deposits that pose serious safety concerns and low energy efficiency during charge and discharge cycles, according to the team, which includes former U.S. Secretary of Energy Steven Chu.

However, lithium metal would be the optimal choice as an anode material because of its high energy density.

In its approach described in the report, the team managed to coat a lithium metal anode with a special protective barrier. It consists of a honeycomb-like structure of hollow carbon nanospheres about 20 nanometers thick.

The coating isolates the lithium metal depositions, according to the researchers.

"The cycling Coulombic efficiency can be highly stable at (about) 99 percent for more than 150 cycles," the researchers wrote, adding that the efficiency must be improved to over 99.9 percent for practical batteries.

In rechargeable batteries, Coulombic efficiency is often expressed as a percentage to describe the energy used during discharge compared with the energy used when charging.

"The lithium metal anode technology we developed can impact consumer electronics such as smartphones and laptops, and electrical vehicles," Yi Cui, an associate professor in Stanford's Department of Chemistry, wrote in an email.

"It can also impact grid-scale energy storage. We can enable high energy density and low-cost batteries."

The technology could be commercialized in five years, Cui added.

Follow Us

Join the New Zealand Reseller News newsletter!

Error: Please check your email address.

Tags Batteries / fuel cellsComponentsStanford University

Featured

Slideshows

Educating from the epicentre - Why distributors are the pulse checkers of the channel

Educating from the epicentre - Why distributors are the pulse checkers of the channel

​As the channel changes and industry voices deepen, the need for clarity and insight heightens. Market misconceptions talk of an “under pressure” distribution space, with competitors in that fateful “race for relevance” across New Zealand. Amidst the cliched assumptions however, distribution is once again showing its strength, as a force to be listened to, rather than questioned. Traditionally, the role was born out of a need for vendors and resellers to find one another, acting as a bridge between the testing lab and the marketplace. Yet despite new technologies and business approaches shaking the channel to its very core, distributors remain tied to the epicentre - providing the voice of reason amidst a seismic industry shift. In looking across both sides of the vendor and partner fences, the middle concept of the three-tier chain remains centrally placed to understand the metrics of two differing worlds, as the continual pulse checkers of the local channel. This exclusive Reseller News Roundtable, in association with Dicker Data and rhipe, examined the pivotal role of distribution in understanding the health of the channel, educating from the epicentre as the market transforms at a rapid rate.

Educating from the epicentre - Why distributors are the pulse checkers of the channel
Kiwi channel reunites as After Hours kicks off 2017

Kiwi channel reunites as After Hours kicks off 2017

After Hours made a welcome return to the channel social calendar last night, with a bumper crowd of distributors, vendors and resellers descending on The Jefferson in Auckland to kickstart 2017. Photos by Maria Stefina.

Kiwi channel reunites as After Hours kicks off 2017
Arrow exclusively introduces Tenable Network Security to A/NZ channel

Arrow exclusively introduces Tenable Network Security to A/NZ channel

Arrow Electronics introduced Tenable Network Security to local resellers in Sydney last week, officially launching the distributor's latest security partnership across Australia and New Zealand. Representing the first direct distribution agreement locally for Tenable specifically, the deal sees Arrow deliver security solutions directly to mid-market and enterprise channel partners on both sides of the Tasman.

Arrow exclusively introduces Tenable Network Security to A/NZ channel
Show Comments